Cloth-board.



E. A. McIVHLLIN.

CLOTH BOARD.

APPLICATION FILED JUNE 27, 1910.

1,1?8 290. Patented Feb. 29,1916.

WITNESEEE'. INVEWTUR.

vi, w b 6 m y 'w EDWARD A. MDMILLIN.

TWIT ATE ATE WINCH.

EDWARD A. MCMILLIN, OF NORTH ADAMS, MASSAGHUSETTS,-ASSIGNOR TO THE E. A. MCMILLIN COMPANY, OF PHILMONT, NEW YORK, A CORPORATION OF NEW YORK.

CLOTH-BOARD.

To all whom it may concern:

Be it known that I, EDWARD A. MGMILLIN, of the city of North Adams, in the county of Berkshire and Commonwealth of Massachusetts, have invented certain new and useful Improvements in Cloth-Boards, of which the following description. in connection with the accompanying drawing, constitutes a specification.

The invention relates to so-called boards upon which cloth may be wound to preserve and protect it in its finished state and to facilitate shipping, transporting and handling it.

Among the objects sought to be accomplishedby the use of this invention is to provide a cloth board which shall be very light, thin and stiff. and yet be able to withstand the contractile pressure of the bolt of wound cloth which is very great and exerts a powerful tendency to crush or double up the flat vehicle upon which it is wound un less it is transversely very stiff. Thin wooden boards have hitherto been extensively used for such winding purposes, but to be suitable for the duty required of them they must be sound and free from shakes, knots and gummy streaks. If shaky, the contraction of the woundcloth will cause them to split and come apart along the shaky line thus destroying the core support for the cloth and permitting the buckling and doubling up of several of the innermost convolutions of the cloth and thus wrinkling and spoiling its salability. Knots and streaks which exude gum also tend to soil and damage the goods wherever they come in contact with the fabric. As the supply of wooden boards of suitable quality has fallen off and their cost has greatly increased a demand has arisen for some kind of a substitute for wood which will be cheap, light and capable of holding its shape under the stress of the contraction of the wound bolt of cloth so that the Windi gs next to the board shall remain unin jured from any external or internal strain or pressure to which the board may be subjected in shipping, transportation, packing or handling, and at the same time the board shall be perfectly clean and free from anything which will tend to soil or injure any fabric wound upon it, and shall also be free from any tendency to split.

F or the purposes mentioned, I have pro- Specification of Letters Patent. Pat gntgd Feb, 29, 191%; Application filed June 27, 1910.

Serial No. 569,044.

vided a composite board made up of layers of wood-pulp board united under pressure by a strong adhesive paste or cement. The sides of this structure are covered with paper to render them smooth, and the edges and ends are bound with a tough, strong paper capable of withstanding hard service and rough usage.

The invention is fully illustrated in the drawing in which the figure shows such a board so dissected as to exhibit the character of the material used and the mode of combining its several component parts to secure the best results.

In the manufacture of these boards I preferably use a board made from some kind of fibrous pulp such as straw or wood, produced on a cylinder paper machine, as such a machine produces a sheet in which a large preponderance of the fiber is laid longitudinally or lengthwise of the sheet. so that the sheet resists crosswise tearing much better than it does length-wise tearing. Such a sheet will also resist bending or rolling up lengthwise of the sheet better than crosswise.

In the drawing I have shown a clothboard A, composed of a series of layers of pulp board I), c, (Z, c, and in which the surface ruling of the several sheets indicates the direction of the fiber. The outside sheets, I) and f, and inner layer (Z, show atransverse direction of the longitudinal fibers, while the intermediate sheets (2, and 6, show the fibers disposed parallel with the marginal edges of the board. The several sheets or sections of the composite board are each cut to a definite size and shape so that when assembled their edges will register perfectly. They are then laid up in a strong paste, glue or adhesive cement which possesses the property of drying thoroughly hard and firm without any tendency to crack or crystallize. They are laid up with the grain of each piece disposed across that of the adjacent piece so that the tendency of any layer to warp in any direction will be counteracted by the tendency of its ad jacent layers to warp in a different direction. this neutralization of the warping tendencies of the several layers being confirmed by the rigidity which the dried ccnient imparts to the whole piece.

After the constituent layers of the piece have been consolidated by pressure and the structure has thoroughly set and dried, its edges are bound by firm, tough and strong strips of paper binding as shown at g, g, and its ends by similar pieces h, h. The corners of the board are chamfered and bound as shown at z, z, i, i, which prevents separation of the layers at those points from use and prevents the corners from fraying out.

, These boards so designed and constructed are specially adapted for vuse in connection with my improved winding apparatus which forms the subject matter of co-pending application No. 507,813, filed July 15, 1909.

In service in the winding process the board is supported by a thin, stiff integral metallic plate which is preferably a little narrower than the width of the clothboard which it carries. This difference in width, although not indispensable or essential, to successful operation, permits the cloth to be drawn directly across the edges of the clothboard during the winding process thus creating a tendency in the board to yield to the winding strain put upon it and curl or warp to conform to the shape of the coils of the cloth around it, which tendency is successfully met by the rigidity imparted to the board by the crossed grain of the several layers of which it is made up secured by the adhesive, hardened cement with which those layers are bound together.

I therefore claim as my invention and desire to secure by Letters Patent, the follow- 1. A cloth board of the character described, composed ofa plurality of sheets of pulp board laid up with adhesive cement under pressure, and having its lateral edges bound with a smooth, tough fabric to protect against abrasion and separation of the sheets, substantially as specified 2. A cloth board of the character described, composed of a plurality of sheets of pulp board laidup with adhesive cement under pressure, with the grain of contiguous layers of said sheets crossed, and having its lateral edges bound with a smooth, tough fabric to protect against abrasion, substantially as specified.

3. A cloth board of the character described, composed of a plurality of sheets of pulp board laid up with adhesive cement under pressure, and having its lateral and terminal edges bound with a tough, smooth fabric to protect against'abrasion, substantially as specified.

In witness whereof I have hereunto set my name inthe presence of two witnesses.

EDWARD A. MOMILLIN.

Witnesses EMILY SCOTT, ommy M. MEEDHAM.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). O. 

